Quarterly report [Sections 13 or 15(d)]

Investment in Charter Accounted for Using the Equity Method - Class A common stock sold to Charter (Details)

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Investment in Charter Accounted for Using the Equity Method - Class A common stock sold to Charter (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Apr. 30, 2026
Mar. 31, 2026
Mar. 31, 2025
Investments in affiliates accounted for using the Equity Method      
Amount of Charter sold   $ 190 $ 300
Charter | Series A common stock      
Investments in affiliates accounted for using the Equity Method      
Number of Charter sold   870,753 825,420
Amount of Charter sold   $ 190 $ 300
Charter | Series A common stock | Subsequent event      
Investments in affiliates accounted for using the Equity Method      
Number of Charter sold 643,444    
Amount of Charter sold $ 143